Pinned topicUse of nowiki or {{{ to quote inset xml

I've tried a few ways to inset a block of xml markup, verbatim within a wiki page (as an example).

The closest I've come to having that work is to use { { { } } } (without the extra spaces!) in the wiki markup. But the problem is that after I have inserted such block and have saved and exited edit mode, I can no longer edit that page without having that nice looking block degrade into linearized text laden with all kinds of what should be invisible markup.

Is there a convenient way to plug in a block of xml into a wiki page and have it survive multiple page edits without having to manually re-lay-out all of the original text?